Company lists · Data refreshed September 2026

Top 25 Project management consulting firms based in Irvine, United States

Name: Project management consulting firms based in Irvine, United States
Creator: RevenueBase
License: https://creativecommons.org/licenses/by/4.0/

Compiled by the RevenueBase Data Team Data refreshed Sep 5, 2026 69 companies tracked

RevenueBase identified 69 project management consulting firms headquartered in Irvine, United States as of September 2026 and tracks 1,678 professional contacts across them, including 852 with verified work emails. Across the United States, New York is the largest hub for this category (484 companies); Irvine has 69.

This list covers project management consulting firms headquartered in Irvine, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 5, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 5, 2026 86% judged on-target in blind review

69Companies

1,678Contacts tracked

852Verified emails

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The 25 largest project management consulting firms based in Irvine, United States

Ranked by team size

Top 25 of 69 project management consulting firms based in Irvine, United States, ranked by team size, largest first. Data refreshed Sep 5, 2026. RevenueBase Smart Search rates how each company's information relates to project management consulting firms: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#	Company	RevenueBase Smart Search	Headquarters	Employees	Contacts
1	Kantata	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	501-1,000	405 contacts →
	Partial evidence “Kantata helps professional services organizations of 50 to employees ensure consistent excellence and profitability across every project.” Source: RevenueBase Database · checked Sep 5, 2026
2	Interwest Consulting Group	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	201-500	221 contacts →
	Partial evidence “Interwest specializes in providing professional and consulting services to public agencies across California, Nevada, Colorado, and beyond.” Source: RevenueBase Database · checked Sep 5, 2026
3	Ocmi, Inc. O'connor Construction Management	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	51-200	168 contacts →
	Strong evidence “Founded in 1982 by Colm O’Connor, OCMI leads the way in estimating, project controls, and construction management solutions.” Source: RevenueBase Database · checked Sep 5, 2026
4	Apsi Construction Management	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	51-200	94 contacts →
	Strong evidence “Since our establishment in 1990, APSI Construction Management has been a leader in providing construction project management, project controls, scheduling, estimating, and claims…” Source: RevenueBase Database · checked Sep 5, 2026
5	Intueor Consulting, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	51-200	52 contacts →
	Indirect evidence “Intueor specializes in Strategy, Operations & Business Productivity advisory work.” Source: RevenueBase Database · checked Sep 5, 2026
6	Compassx Group	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	47 contacts →
	Partial evidence “CompassX is a local-model consulting firm headquartered in SoCal.” Source: RevenueBase Database · checked Sep 5, 2026
7	Concannon Business Consulting	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	45 contacts →
	Indirect evidence “When resources and knowledge are constrained, your team will feel the pressure and your business may be at-risk for delays, lost revenue, and lost trust internally and externally.” Source: RevenueBase Database · checked Sep 5, 2026
8	Griffin Structures	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	41 contacts →
	Partial evidence “Founded in 1981, Griffin plans, develops, and manages projects “from concept to keys,” delivering high-quality, cost-effective, and time-efficient facilities.” Source: RevenueBase Database · checked Sep 5, 2026
9	MLC And Associates	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	38 contacts →
	Strong evidence “MLC and Associates is an award-winning, world-class management consulting firm, recognized for helping companies in every industry with business continuity, corporate performance…” Source: RevenueBase Database · checked Sep 5, 2026
10	C&v Consulting, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	37 contacts →
	Indirect evidence Source: RevenueBase Database · checked Sep 5, 2026
11	National Engineering & Consulting, INC	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	51-200	20 contacts →
	Partial evidence “National Engineering and Consulting, Inc.” Source: RevenueBase Database · checked Sep 5, 2026
12	SGE Consulting Engineers	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	18 contacts →
	Indirect evidence “Established in 1992, S.” Source: RevenueBase Database · checked Sep 5, 2026
13	GCC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	16 contacts →
	Strong evidence “GCC provides professional construction management, and project controls staff for design-build and design-bid-build construction projects, including professionals to augment your…” Source: RevenueBase Database · checked Sep 5, 2026
14	Mentor Global Consultants	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	16 contacts →
	Strong evidence “MENTOR is a management consulting firm that helps organizations to improve performance and reach their full potential, by offering a unique combination of business solutions.” Source: RevenueBase Database · checked Sep 5, 2026
15	Nelsonhps	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	15 contacts →
	Indirect evidence “NelsonHPS is focused on being the Owner’s Advocate.” Source: RevenueBase Database · checked Sep 5, 2026
16	Paragon Construction Consulting	Partial evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	9 contacts →
	Partial evidence “During the 2008 recession, Paragon saw the need to provide predictable outcomes to projects that were mismanaged, over budget, and headed to bankruptcy.” Source: RevenueBase Database · checked Sep 5, 2026
17	Montfichet & Company	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	51-200	7 contacts →
	Strong evidence “Montfichet is a management consulting company offering clients a focused range of fully integrated solutions in areas that include strategic planning, marketing automation, sales…” Source: RevenueBase Database · checked Sep 5, 2026
18	Sarakki Associates Inc. SAI	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	1-10	7 contacts →
	Strong evidence “Sarakki Associates Inc.(SAI) is a leading consulting firm specializing in management consulting, program/project management, and systems-software engineering (requirements…” Source: RevenueBase Database · checked Sep 5, 2026
19	Costa Advisory	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	1-10	5 contacts →
	Strong evidence “Costa Advisory is a boutique consulting firm focused on construction projects throughout North America.” Source: RevenueBase Database · checked Sep 5, 2026
20	Copperpillar Consulting, INC	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	5 contacts →
	Indirect evidence “Copperpillar excels in the telecommunications industry with core services that enable our clients to meet fast paced demands and deadlines.” Source: RevenueBase Database · checked Sep 5, 2026
21	Professional Corporate Consultants	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	201-500	4 contacts →
	Strong evidence “Professional Corporate Consultants is a full-service project consulting firm with a reputation for delivering customized solutions to meet the diverse needs of public and private…” Source: RevenueBase Database · checked Sep 5, 2026
22	Scgwest	Indirect evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	4 contacts →
	Indirect evidence “SCGWest was formed around the needs of our retail, restaurant, and medical office clients to accelerate and optimize the process of opening a new location or refreshing an…” Source: RevenueBase Database · checked Sep 5, 2026
23	Hüther Consulting	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	1-10	4 contacts →
	Strong evidence “About Huther Consulting: A Multidisciplinary Global Hub At Huther Consulting, we believe that complex international projects require more than just a single point of view.” Source: RevenueBase Database · checked Sep 5, 2026
24	RMS Project Management, INC	Strong evidence	Irvine, CA, United StatesHQ checked Sep 5, 2026	11-50	3 contacts →
	Strong evidence “RMS Project Management specializes in program, project, and construction management for private and public-sector clients.” Source: RevenueBase Database · checked Sep 5, 2026
25	Velocityone Group	Partial evidence	Irvine, United StatesHQ checked Sep 5, 2026	11-50	3 contacts →
	Partial evidence “VelocityOne Group is a global business consulting firm with offices in all major cities.” Source: RevenueBase Database · checked Sep 5, 2026

RevenueBase Smart Search

RevenueBase Smart Search assesses information from a company’s LinkedIn profile, information supplied directly by the company, its website, and other publicly available sources. It uses that information to rate how closely the company relates to this list’s category: project management consulting firms. Every row carries its rating and the description the rating was read from, so each one can be checked rather than taken on trust.

Strong evidence: The company's own public description of its business names project management consulting firms.
Partial evidence: Its own public description names part of project management consulting firms, so it works in or next to the category without describing itself that way.
Indirect evidence: The description shown does not name project management consulting firms. The match rests on the rest of the company's public profile rather than the one sentence quoted here, so this is the rating to check first.

RevenueBase Smart Search is how these lists are built: RevenueBase's data engine and AI assemble the companies that match a category defined in a user's own words, so a list can be about what companies actually do rather than about whichever industry code they were filed under.

Showing 25 of 69 project management consulting firms based in Irvine, United States

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Project management consulting firms based in Irvine, United States at a glance

As of Sep 5, 2026

50.8%Verified-email coverage

24.3Average contacts per company

1-10Median size (employees)

Sep 5, 2026Page data refreshed

Companies by employee count

1-10

11-50

51-200

201-500

501-1,000

Email recency for this list is measured across the whole United States list rather than for Irvine, so it is reported there. Company counts and contact totals on this page are exact for Irvine, over 69 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among project management consulting firms, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source: The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies: Companies headquartered in Irvine, United States whose own description of what they do matches “project management consulting firms”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search: RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names project management consulting firms), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude: Companies whose own description does not clearly place them among project management consulting firms, and records with no verified work email. Companies headquartered outside Irvine are excluded even when they keep an office there.
Match quality: In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking: Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification: Every listed company carries at least one verified work email, 852 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh: This page's figures were pulled from the company graph on September 5, 2026. Lists refresh periodically as the graph is re-checked.
Corrections: Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Project management consulting firms by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names project management consulting firms, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many project management consulting firms are there based in Irvine, United States?

RevenueBase identified 69 project management consulting firms headquartered in Irvine, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Kantata, headquartered in Irvine, tops this list with the largest team on record.

Which city in the United States has the most project management consulting firms?

New York leads the United States with 484 headquartered companies, followed by Houston (365) and Chicago (269). Irvine has 69.

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 852 verified decision-maker contacts tracked across these 69 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 5, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.